lets not forget the automatic land balancing either, or that you can't miss your own triggers or your opponents, which IRL usually leads to a loss of position / warningI know I fuck up draft/sealed picks/builds way less on MTGO than I do in live events. Having the entire pack/pool laid out in front of you during the decision making process, with easy filtering/manipulation, really helps with visualizing.
I learned a bit from MTGO since it forces you to stack things properly, but playing IRL is a lot harder
Further it really sucks that MTGO is so slow. You have to be a real pro to handle playing countertop or any similar combo since you will lose copious amount of time doing obvious things. I think I fetch faster IRL then on MTGO, and I 100% top twice as fast if not more.